{"cve":"CVE-2026-86441","nvd":{"published":"2026-09-07T13:20:43.287","modified":"2026-09-09T15:24:22.190","status":"Analyzed","description":"Affected versions of MISP contain inconsistent authorization checks across dashboard widgets that display organisation information.\n\n\nSeveral organisation-related widgets did not honor Security.hide_organisation_index_from_users. As a result, authenticated users without the perm_sharing_group permission could enumerate organisations even though the normal organisation index was intentionally hidden from them.\n\n\nThe affected widgets included paths that:\n\n\n\n  *  \nreturned organisation names and identifiers;\n\n\n  *  \ncould expose additional organisation database fields through JSON export because unrestricted find('all') queries fetched full rows;\n\n\n  *  \naccepted limit=0 or negative values in a way that could effectively remove the result limit and return the entire organisation table.\n\n\n\n\n\nA related organisation-contributor leaderboard also ignored the same visibility setting. Its handler counted Event.orgc_id across the entire event table and mapped those IDs to organisation names, revealing every organisation with events regardless of whether the caller could see any of those events. The fix withdraws this widget entirely for users who lack organisation-index visibility.\n\nVersion affected: ≤2.5.45","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","score":2.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","score":4.3},"cwes":["CWE-200","CWE-862"],"references":["https://github.com/MISP/MISP/commit/5e333a159.patch","https://github.com/MISP/MISP/commit/67892d90e"],"products":["misp-project:misp"],"source":"nvd","synced_at":"2026-10-19T22:52:03.409947763+00:00"},"epss":{"cve":"CVE-2026-86441","score":0.00281,"percentile":0.20623,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}